Patent US2817916A successfully refreshed from Google Patents.
US2817916A
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US
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Oscillatory display device having bimetallic actuator
Assignee: Betts & Betts Corp
•
Filing: 1953-07-23
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Granted: 1957-12-31
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Expires: 1973-07-23
Abstract
No abstract record available.
Inventors
- 👤 Allen Mary Lou
- 👤 Richard F Brinckerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:12
CPC Classifications
G; G09; G09F; G09F11/00; G09F11/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US778307A
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US1576649A
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US1804709A
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US2066145A
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US2099277A
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US2285913A
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US2555882A
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US2687005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |